package me.sdevil507.systemAssist.systemLog.aop;

import com.alibaba.fastjson.JSON;
import me.sdevil507.supports.shiro.helper.OrgAccountHelper;
import me.sdevil507.supports.shiro.helper.PlatAccountHelper;
import me.sdevil507.supports.shiro.helper.ServiceAccountHelper;
import me.sdevil507.supports.util.IpUtil;
import me.sdevil507.systemAssist.Constant.SystemAssistConstant;
import me.sdevil507.systemAssist.systemLog.annotation.OperLog;
import me.sdevil507.systemAssist.systemLog.po.SystemErrorLogPo;
import me.sdevil507.systemAssist.systemLog.po.SystemOperLogPo;
import me.sdevil507.systemAssist.systemLog.service.SystemErrorLogService;
import me.sdevil507.systemAssist.systemLog.service.SystemOperLogService;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;

import javax.servlet.http.HttpServletRequest;
import java.lang.reflect.Method;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

/**
 * @Author hp
 * @Date 2021/4/22 9:54
 * @Description 日志切面
 * @Version 1.0
 */
@Aspect
@Component
public class OperLogAspect {


    @Autowired
    private SystemOperLogService systemOperLogService;

    @Autowired
    private SystemErrorLogService systemErrorLogService;

    /**
     * 设置操作日志切入点 记录操作日志 在注解的位置切入代码
     */
    @Pointcut("@annotation(me.sdevil507.systemAssist.systemLog.annotation.OperLog)")
    public void operLogPoinCut() {
    }

    /**
     * 设置操作异常切入点记录异常日志 在注解的位置切入代码
     */
    @Pointcut("@annotation(me.sdevil507.systemAssist.systemLog.annotation.OperLog)")
    public void operErrorLogPoinCut() {
    }

    /**
     * 正常返回通知，拦截用户操作日志，连接点正常执行完成后执行， 如果连接点抛出异常，则不会执行
     *
     * @param joinPoint 切入点
     * @param keys      返回结果
     */
    @AfterReturning(value = "operLogPoinCut()", returning = "keys")
    public void saveOperLog(JoinPoint joinPoint, Object keys) {
        // 获取RequestAttributes
        RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();
        // 从获取RequestAttributes中获取HttpServletRequest的信息
        HttpServletRequest request = (HttpServletRequest) requestAttributes
                .resolveReference(RequestAttributes.REFERENCE_REQUEST);

        SystemOperLogPo operlog = new SystemOperLogPo();
        try {
            // 从切面织入点处通过反射机制获取织入点处的方法
            MethodSignature signature = (MethodSignature) joinPoint.getSignature();
            // 获取切入点所在的方法
            Method method = signature.getMethod();
            // 获取操作
            OperLog opLog = method.getAnnotation(OperLog.class);
            if (opLog != null) {
                operlog.setOperModule(opLog.operModule());
                operlog.setOperTerminal(opLog.operTerminal());
                operlog.setOperClassify(opLog.operClassify());
                operlog.setOperDesc(opLog.operDesc());
            }
            // 获取请求的类名
            String className = joinPoint.getTarget().getClass().getName();
            // 获取请求的方法名
            String methodName = method.getName();
            methodName = className + "." + methodName;

            operlog.setOperMethod(methodName); // 请求方法

            // 请求的参数
//            Map<String, String> rtnMap = converMap(request.getParameterMap());
            // 将参数所在的数组转换成json
//            String params = JSON.toJSONString(rtnMap);

            //记录请求参数
            if(opLog.recordRequestParams()){
                operlog.setOperRequestParam(JSON.toJSONString(joinPoint.getArgs()[0])); // 请求参数
            }
            operlog.setOperReturnParam(JSON.toJSONString(keys)); // 返回结果
            operlog.setUserId(OrgAccountHelper.getUserId()); // 请求用户ID
            operlog.setUserName(OrgAccountHelper.getUsername()); // 请求用户名称
            //机构端记录来源
            if(operlog.getOperTerminal().equals(SystemAssistConstant.systemAssistTerminal.ORG)){
                operlog.setOperOrgId(OrgAccountHelper.getOrgId());
            }
            operlog.setOperRequestIp(IpUtil.getIpAddr(request)); // 请求IP
            operlog.setOperRequestURI(request.getRequestURI()); // 请求URI
            operlog.setCreateTime(new Date()); // 创建时间
            systemOperLogService.add(operlog);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }


    /**
     * 异常返回通知，用于拦截异常日志信息 连接点抛出异常后执行
     *
     * @param joinPoint 切入点
     * @param e         异常信息
     */
    @AfterThrowing(pointcut = "operErrorLogPoinCut()", throwing = "e")
    public void saveExceptionLog(JoinPoint joinPoint, Throwable e) {
        // 获取RequestAttributes
        RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();
        // 从获取RequestAttributes中获取HttpServletRequest的信息
        HttpServletRequest request = (HttpServletRequest) requestAttributes
                .resolveReference(RequestAttributes.REFERENCE_REQUEST);

        SystemErrorLogPo excepLog = new SystemErrorLogPo();
        try {
            // 从切面织入点处通过反射机制获取织入点处的方法
            MethodSignature signature = (MethodSignature) joinPoint.getSignature();
            // 获取切入点所在的方法
            Method method = signature.getMethod();
            // 获取操作
            OperLog opLog = method.getAnnotation(OperLog.class);
            if (opLog != null) {
                excepLog.setOperTerminal(opLog.operTerminal());
                excepLog.setOperClassify(opLog.operClassify());
                excepLog.setOperModule(opLog.operModule());
            }
            // 获取请求的类名
            String className = joinPoint.getTarget().getClass().getName();
            // 获取请求的方法名
            String methodName = method.getName();
            methodName = className + "." + methodName;
            // 请求的参数
//            Map<String, String> rtnMap = converMap(request.getParameterMap());
//            // 将参数所在的数组转换成json
//            String params = JSON.toJSONString(rtnMap);
            excepLog.setErrorRequestParam(JSON.toJSONString(joinPoint.getArgs()[0])); // 请求参数
            excepLog.setOperMethod(methodName); // 请求方法名
            excepLog.setErrorName(e.getClass().getName()); // 异常名称
            excepLog.setErrorMessage(stackTraceToString(e.getClass().getName(), e.getMessage(), e.getStackTrace())); // 异常信息
            //机构端记录来源
            if(excepLog.getOperTerminal().equals(SystemAssistConstant.systemAssistModule.LOGIN)){
                excepLog.setUserId(OrgAccountHelper.getUserId()); // 操作员ID
                excepLog.setUserName(OrgAccountHelper.getUsername()); // 操作员名称
            }
            excepLog.setErrorRequestURI(request.getRequestURI()); // 操作URI
            excepLog.setErrorRequestIp(IpUtil.getIpAddr(request)); // 操作员IP
            excepLog.setCreateTime(new Date()); // 发生异常时间

            systemErrorLogService.add(excepLog);

        } catch (Exception e2) {
            e2.printStackTrace();
        }
    }

    /**
     * 转换request 请求参数
     *
     * @param paramMap request获取的参数数组
     */
    public Map<String, String> converMap(Map<String, String[]> paramMap) {
        Map<String, String> rtnMap = new HashMap<String, String>();
        for (String key : paramMap.keySet()) {
            rtnMap.put(key, paramMap.get(key)[0]);
        }
        return rtnMap;
    }

    /**
     * 转换异常信息为字符串
     *
     * @param exceptionName    异常名称
     * @param exceptionMessage 异常信息
     * @param elements         堆栈信息
     */
    public String stackTraceToString(String exceptionName, String exceptionMessage, StackTraceElement[] elements) {
        StringBuffer strbuff = new StringBuffer();
        for (StackTraceElement stet : elements) {
            strbuff.append(stet + "\n");
        }
        String message = exceptionName + ":" + exceptionMessage + "\n\t" + strbuff.toString();
        return message;
    }
}
